diff options
Diffstat (limited to 'tex/context/modules/mkiv/x-asciimath.lua')
| -rw-r--r-- | tex/context/modules/mkiv/x-asciimath.lua | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/tex/context/modules/mkiv/x-asciimath.lua b/tex/context/modules/mkiv/x-asciimath.lua index fdcab141c..f158065aa 100644 --- a/tex/context/modules/mkiv/x-asciimath.lua +++ b/tex/context/modules/mkiv/x-asciimath.lua @@ -6,15 +6,14 @@ if not modules then modules = { } end modules ['x-asciimath'] = { license = "see context related readme files" } ---[[ldx-- -<p>Some backgrounds are discussed in <t>x-asciimath.mkiv</t>. This is a third version. I first -tried a to make a proper expression parser but it's not that easy. First we have to avoid left -recursion, which is not that trivial (maybe a future version of lpeg will provide that), and -second there is not really a syntax but a mix of expressions and sequences with some fuzzy logic -applied. Most problematic are fractions and we also need to handle incomplete expressions. So, -instead we (sort of) tokenize the string and then do some passes over the result. Yes, it's real -ugly and unsatisfying code mess down here. Don't take this as an example.</p> ---ldx]]-- +-- Some backgrounds are discussed in 'x-asciimath.mkiv'. This is a third version. I +-- first tried a to make a proper expression parser but it's not that easy. First we +-- have to avoid left recursion, which is not that trivial (maybe a future version +-- of lpeg will provide that), and second there is not really a syntax but a mix of +-- expressions and sequences with some fuzzy logic applied. Most problematic are +-- fractions and we also need to handle incomplete expressions. So, instead we (sort +-- of) tokenize the string and then do some passes over the result. Yes, it's real +-- ugly and unsatisfying code mess down here. Don't take this as an example. -- todo: spaces around all elements in cleanup? -- todo: filter from files listed in tuc file |